SSH oh MY: no matching key exchange method found.…

Have you ever tried to SSH into a server and recieved the following error?

no matching key exchange method found. Their offer: diffie-hellman-group1-sha1

Well that’s probably becuase you are using a bit of kit with legacy software or firmware.

Then when you try to SSH and you add diffie-hellman-group1-sh1 you get the following back?

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